TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Petrović, V.
AU  - Mitrić, Miodrag
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/207
AB  - The aim of this work was to analyze the influence of mechanical activation on the MgCO3-TiO2 system. Mixtures of MgCO3-TiO2 were mechanically activated for 15, 30, 60 and 120 minutes in a planetary ball mill and after that sintered at 1100°C for 1h. XRD analyses were performed in order to give information about the phase composition and to determine a variety of microstructure parameters using Scherrer's method. Also, the effect of tribophysical activation and sintering process on microstructure was investigated by scanning electron microscopy. Electrical measurements were performed in order to determine electrical properties of sintered samples. Our conclusions are that the sample activated for 120 min showed the best electrical properties ( ε r=23.86, Q=233, ρ=0.38) and exhibited the best sinterability.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics
SP  - 117
EP  - 123
VL  - 41
IS  - 2
DO  - 10.2298/SOS0902117F
UR  - https://hdl.handle.net/21.15107/rcub_dais_207
ER  - 

@article{
author = "Filipović, Suzana and Obradović, Nina and Pavlović, Vladimir B. and Petrović, V. and Mitrić, Miodrag",
year = "2009",
abstract = "The aim of this work was to analyze the influence of mechanical activation on the MgCO3-TiO2 system. Mixtures of MgCO3-TiO2 were mechanically activated for 15, 30, 60 and 120 minutes in a planetary ball mill and after that sintered at 1100°C for 1h. XRD analyses were performed in order to give information about the phase composition and to determine a variety of microstructure parameters using Scherrer's method. Also, the effect of tribophysical activation and sintering process on microstructure was investigated by scanning electron microscopy. Electrical measurements were performed in order to determine electrical properties of sintered samples. Our conclusions are that the sample activated for 120 min showed the best electrical properties ( ε r=23.86, Q=233, ρ=0.38) and exhibited the best sinterability.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics",
pages = "117-123",
volume = "41",
number = "2",
doi = "10.2298/SOS0902117F",
url = "https://hdl.handle.net/21.15107/rcub_dais_207"
}

Filipović, S., Obradović, N., Pavlović, V. B., Petrović, V.,& Mitrić, M.. (2009). Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 41(2), 117-123.
https://doi.org/10.2298/SOS0902117F
https://hdl.handle.net/21.15107/rcub_dais_207

Filipović S, Obradović N, Pavlović VB, Petrović V, Mitrić M. Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics. in Science of Sintering. 2009;41(2):117-123.
doi:10.2298/SOS0902117F
https://hdl.handle.net/21.15107/rcub_dais_207 .

Filipović, Suzana, Obradović, Nina, Pavlović, Vladimir B., Petrović, V., Mitrić, Miodrag, "Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics" in Science of Sintering, 41, no. 2 (2009):117-123,
https://doi.org/10.2298/SOS0902117F .,
https://hdl.handle.net/21.15107/rcub_dais_207 .

TY  - CONF
AU  - Obradović, Nina
AU  - Petrović, V.
AU  - Maričić, Aleksa
AU  - Ristić, Momčilo M.
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/3563
AB  - Ceramics for electronics play an important role in several industrial sectors. The most common way of producing these ceramics is through sintering processes from powders. The powders can be treated by mechanical activation; during this process they are subjected to grinding and the grain size is reduced. Crystal structure is distorted and changed; in some systems, the process leads to chemical reaction and formation of new compound. In this paper we explain the influence of mechanical activation on sintering kinetics in system MgCO3-TiO2. Mechanical activation of the starting powder mixture was performed by milling during different time intervals within 120 min in a planetary ball mill device with ZrO balls and vessels; ball to powder mass ratio was 40:1. Powders were compacted and sintered isothermally at 1100°C for 180 min. X-ray powder diffraction was used for observing the evolution of magnesium-titanate phase during milling. For specimens synthesized in such manner, microwave dielectric properties were measured, namely dielectric loss (tg δ), specific electric resistance (ρ) and relative dielectric permittivity (εr).
PB  - Faenza : ISTEC-CNR
C3  - Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]
T1  - Structural and electrical properties of sintered MgTiO3 ceramics
UR  - https://hdl.handle.net/21.15107/rcub_dais_3563
ER  - 

@conference{
editor = "Bellosi, Alida, Babini, Gian Nicola",
author = "Obradović, Nina and Petrović, V. and Maričić, Aleksa and Ristić, Momčilo M.",
year = "2008",
abstract = "Ceramics for electronics play an important role in several industrial sectors. The most common way of producing these ceramics is through sintering processes from powders. The powders can be treated by mechanical activation; during this process they are subjected to grinding and the grain size is reduced. Crystal structure is distorted and changed; in some systems, the process leads to chemical reaction and formation of new compound. In this paper we explain the influence of mechanical activation on sintering kinetics in system MgCO3-TiO2. Mechanical activation of the starting powder mixture was performed by milling during different time intervals within 120 min in a planetary ball mill device with ZrO balls and vessels; ball to powder mass ratio was 40:1. Powders were compacted and sintered isothermally at 1100°C for 180 min. X-ray powder diffraction was used for observing the evolution of magnesium-titanate phase during milling. For specimens synthesized in such manner, microwave dielectric properties were measured, namely dielectric loss (tg δ), specific electric resistance (ρ) and relative dielectric permittivity (εr).",
publisher = "Faenza : ISTEC-CNR",
journal = "Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]",
title = "Structural and electrical properties of sintered MgTiO3 ceramics",
url = "https://hdl.handle.net/21.15107/rcub_dais_3563"
}

Bellosi, A., Babini, G. N., Obradović, N., Petrović, V., Maričić, A.,& Ristić, M. M.. (2008). Structural and electrical properties of sintered MgTiO3 ceramics. in Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]
Faenza : ISTEC-CNR..
https://hdl.handle.net/21.15107/rcub_dais_3563

Bellosi A, Babini GN, Obradović N, Petrović V, Maričić A, Ristić MM. Structural and electrical properties of sintered MgTiO3 ceramics. in Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008]. 2008;.
https://hdl.handle.net/21.15107/rcub_dais_3563 .

Bellosi, Alida, Babini, Gian Nicola, Obradović, Nina, Petrović, V., Maričić, Aleksa, Ristić, Momčilo M., "Structural and electrical properties of sintered MgTiO3 ceramics" in Global roadmap for ceramics : ICC2 proceedings / 2nd International Congress on Ceramics, [Verona, Italy, June 29 - July 4, 2008] (2008),
https://hdl.handle.net/21.15107/rcub_dais_3563 .

TY  - CONF
AU  - Obradović, Nina
AU  - Labus, Nebojša
AU  - Petrović, V.
AU  - Mitrović, Nebojša
AU  - Pavlović, Vladimir B.
PY  - 2005
UR  - https://dais.sanu.ac.rs/123456789/328
AB  - Poster presented at the ELECTROCERAMICS X, June 18-22, 2006, Toledo, Spain
T1  - Structural and Electrical Properties of Sintered Zinc-titanate Ceramics
UR  - https://hdl.handle.net/21.15107/rcub_dais_328
ER  - 

@conference{
author = "Obradović, Nina and Labus, Nebojša and Petrović, V. and Mitrović, Nebojša and Pavlović, Vladimir B.",
year = "2005",
abstract = "Poster presented at the ELECTROCERAMICS X, June 18-22, 2006, Toledo, Spain",
title = "Structural and Electrical Properties of Sintered Zinc-titanate Ceramics",
url = "https://hdl.handle.net/21.15107/rcub_dais_328"
}

Obradović, N., Labus, N., Petrović, V., Mitrović, N.,& Pavlović, V. B.. (2005). Structural and Electrical Properties of Sintered Zinc-titanate Ceramics. .
https://hdl.handle.net/21.15107/rcub_dais_328

Obradović N, Labus N, Petrović V, Mitrović N, Pavlović VB. Structural and Electrical Properties of Sintered Zinc-titanate Ceramics. 2005;.
https://hdl.handle.net/21.15107/rcub_dais_328 .

Obradović, Nina, Labus, Nebojša, Petrović, V., Mitrović, Nebojša, Pavlović, Vladimir B., "Structural and Electrical Properties of Sintered Zinc-titanate Ceramics" (2005),
https://hdl.handle.net/21.15107/rcub_dais_328 .

TY  - CONF
AU  - Zdujić, Miodrag
AU  - Petrović, V.
AU  - Uskoković, Dragan
PY  - 1987
UR  - https://dais.sanu.ac.rs/123456789/521
AB  - Molybdenum powders were produced by the rotating electrode process in helium atmosphere. The electrode diameter was 0.01 m and the angular velocity was 524 and 2094 rad/s, respectively. The increase of the angular velocity was followed by the decrease of mean particle size, which was 690 and 193 μm for the indicated angular velocities, respectively. The particles obtained were spherical, and their flow rate and apparent density was high. Theoretical cooling rates were calculated and were in the range 104–106 K/sec for particle diameters 800 μm — 50 μm. Typical powder solidification structure consisted of equiaxed grains and dendrites whose sizes were related to particle size.
PB  - New York; London : Plenum Press
C3  - Sintering’85
T1  - Preparation of Molybdenum Powders by Rotating Electrode Process
SP  - 101
EP  - 108
DO  - 10.1007/978-1-4613-2851-3_10
UR  - https://hdl.handle.net/21.15107/rcub_dais_521
ER  - 

@conference{
author = "Zdujić, Miodrag and Petrović, V. and Uskoković, Dragan",
year = "1987",
abstract = "Molybdenum powders were produced by the rotating electrode process in helium atmosphere. The electrode diameter was 0.01 m and the angular velocity was 524 and 2094 rad/s, respectively. The increase of the angular velocity was followed by the decrease of mean particle size, which was 690 and 193 μm for the indicated angular velocities, respectively. The particles obtained were spherical, and their flow rate and apparent density was high. Theoretical cooling rates were calculated and were in the range 104–106 K/sec for particle diameters 800 μm — 50 μm. Typical powder solidification structure consisted of equiaxed grains and dendrites whose sizes were related to particle size.",
publisher = "New York; London : Plenum Press",
journal = "Sintering’85",
title = "Preparation of Molybdenum Powders by Rotating Electrode Process",
pages = "101-108",
doi = "10.1007/978-1-4613-2851-3_10",
url = "https://hdl.handle.net/21.15107/rcub_dais_521"
}

Zdujić, M., Petrović, V.,& Uskoković, D.. (1987). Preparation of Molybdenum Powders by Rotating Electrode Process. in Sintering’85
New York; London : Plenum Press., 101-108.
https://doi.org/10.1007/978-1-4613-2851-3_10
https://hdl.handle.net/21.15107/rcub_dais_521

Zdujić M, Petrović V, Uskoković D. Preparation of Molybdenum Powders by Rotating Electrode Process. in Sintering’85. 1987;:101-108.
doi:10.1007/978-1-4613-2851-3_10
https://hdl.handle.net/21.15107/rcub_dais_521 .

Zdujić, Miodrag, Petrović, V., Uskoković, Dragan, "Preparation of Molybdenum Powders by Rotating Electrode Process" in Sintering’85 (1987):101-108,
https://doi.org/10.1007/978-1-4613-2851-3_10 .,
https://hdl.handle.net/21.15107/rcub_dais_521 .